What is the difference in paralytic polio: estimated cases by world region between Sierra Leone and Tajikistan?

0 cases, with Sierra Leone ahead.

How many years of comparable data are there for Sierra Leone and Tajikistan?

32 years are reported by both, from 1991 to 2023.

Where does this data come from?

World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data, published as Paralytic polio: estimated cases by world region. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Sierra Leone vs Tajikistan: Paralytic polio: estimated cases by world region

Sierra Leone

0 cases

in 2023

Tajikistan

0 cases

in 2023

Sierra Leone rank

26th

Tajikistan rank

26th

Paralytic polio: estimated cases by world region over time

Sierra Leone
Tajikistan

How they compare

Sierra Leone currently reports 0 cases against 0 cases in Tajikistan, a difference of 0 cases.

The two have swapped places 6 times across 32 shared years of data; in 1991 it was Tajikistan ahead.

Sierra Leone ranks 26th and Tajikistan ranks 26th of 199 countries.

Across the 4 decades both report, Sierra Leone averaged higher in 1 and Tajikistan in 3.

Head to head by decade

Decade	Sierra Leone	Tajikistan	Difference	Ahead
1990s	79.62 cases	140.88 cases	61.25 cases	Tajikistan
2000s	25.02 cases	0 cases	25.02 cases	Sierra Leone
2010s	0.111 cases	51.06 cases	50.95 cases	Tajikistan
2020s	7.5 cases	9.99 cases	2.49 cases	Tajikistan

Averages of every year both report within each decade.

Frequently asked questions

Which has higher paralytic polio: estimated cases by world region, Sierra Leone or Tajikistan?: Sierra Leone, at 0 cases against 0 cases in Tajikistan as of 2023.
What is the difference in paralytic polio: estimated cases by world region between Sierra Leone and Tajikistan?: 0 cases, with Sierra Leone ahead.
How many years of comparable data are there for Sierra Leone and Tajikistan?: 32 years are reported by both, from 1991 to 2023.
How do Sierra Leone and Tajikistan rank globally for paralytic polio: estimated cases by world region?: Sierra Leone ranks 26th and Tajikistan ranks 26th of 199 countries.
Where does this data come from?: World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data, published as Paralytic polio: estimated cases by world region. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sierra Leone vs Tajikistan: Paralytic polio: estimated cases by world region. Statizoid, drawing on World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data. Retrieved 07 September 2026, from https://reference.statizoid.com/compare/number-of-estimated-paralytic-polio-cases-by-world-region/sierra-leone/tajikistan/

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<a href="https://reference.statizoid.com/compare/number-of-estimated-paralytic-polio-cases-by-world-region/sierra-leone/tajikistan/">Sierra Leone vs Tajikistan: Paralytic polio: estimated cases by world region</a> — Statizoid

About this data

Indicator: Paralytic polio: estimated cases by world region
Unit: cases
Source: World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 199 places, 7,608 data points, 1980–2023
Last refreshed: 28 August 2026

Total estimated number of polio cases.